The evolution of the SPR comes home to Daniel Defense in the MK12. It was born of necessity, raised in the Army’s Marksmanship Unit and refined to Daniel Defense standards.
The MK12 is constructed around an 18-inch Stainless Steel barrel with a chamber created during the Cold Hammer Forging process, which ensures the most precise alignment of the chamber to the bore possible. This, along with being DLC finished, equates to unprecedented accuracy and durability. The MK12 barrel is engineered with a rifle-length direct impingement gas system and utilizes the MK12 gas block, which is built to Crane Specifications for USSOCOM. The MK12 gas block is precision CNC machined from 416 stainless steel and Black Oxide Coated. The rifle is fed with a M16 profile bolt carrier group and uses a BCMGUNFIGHTER Charging Handle for ease of operation. The upper receiver is equipped with a free floating DDM4 Rail 12.0 quad rail for allowing your choice of optics and accessories and is finished off with a Daniel Defense Improved Flash Suppressor.
The MK12 was designed from the ground up to be a precision rifle, therefore it required certain refinements. We equipped it with the Geissele SSA 2-Stage Trigger to give the marksman an advantage delivering precise fire to the target. We also furnished the MK12 with the rugged and comfortable Daniel Defense Buttstock and Pistol Grip.
Materials & Construction
LOWER RECEIVER: Mil-Spec with Enhanced Flared Magazine Well and Rear Receiver QD Swivel Attachment Point. CNC Machined of 7075-T6 Aluminum
UPPER RECEIVER: Mil-Spec with Indexing Marks and M4 Feed Ramps. CNC Machined of 7075-T6 Aluminum
BARREL: Proprietary Blend of Stainless Steel, Cold Hammer Forged, 1:7” Twist, 18? MK12 Profile, DLC Finished, and HP/MPI Tested
GAS SYSTEM: MK12 Low Profile Gas Block CNC Machined of hardened 416 stainless steel with Black Oxide Coating, Rifle-Length, Direct Impingement
MUZZLE DEVICE: Daniel Defense Flash Suppressor, 17-4 PH Stainless Steel, Salt Bath Nitride Finished
BOLT CARRIER GROUP: M16 Profile, Mil-Spec MP Tested, Chrome Lined, Properly Staked Gas Key
BUFFER: H Buffer
SIGHTS: Sold Separately
HANDGUARD: Daniel Defense DDM4 Rail 12.0, CNC Machined of 6061-T6 Aluminum
RECEIVER EXTENSION: 6 Position Mil-Spec 7075-T6 Aluminum
BUTTSTOCK: Daniel Defense Buttstock, Glass Filled Polymer with Soft Touch Overmolding
PISTOL GRIP: Daniel Defense Pistol Grip, Glass Filled Polymer with Soft Touch Overmolding
RAIL PANELS: Daniel Defense Rail Panels made from Santoprene, heat resistant to 300° F.
FINISH: Daniel Defense Deep Woods
Made in the USA!
Manufacturing # / SKU 02-142-81680-047
Restricted Shipping Yes
Caliber 5.56mm NATO
Muzzle Thread 1/2×28 TPI (Threads Per Inch)
Gas System Rifle
Barrel Length 18"
Profile MK12
Product Weight 7.41 lbs
Length 34 ¾” – 37 7/8”
Magazine DD Magazine (32 Round)
Case Daniel Defense Full-Latch Impact Plastic Case
Manufacturer Daniel Defense
The information below comes from our Gun Caliber Dictionary and is for
general reference only. It does not describe the specifications of this
particular item.
The 5.56X45mm NATO cartridge was designed by James Sullivan, a member of Eugene Stoner's engineering team that developed both the M16 rifle and its original cartridge. The 5.56X45mm NATO was adopted by the U.S. military in 1964 and by NATO in 1980. With bullet diameter of .224-inch, the original M193 military cartridge used a 55-grain bullet at 3250 fps; the current M855A1 cartridge, developed by FN, uses a 62.5-grain bullet at 3020 fps, offering greater range and better penetration. The civilian version of the 5.56X45mm is 223 Remington; the cartridges are dimensionally identical but military chamber dimensions and specifications for military brass are different. It is considered safe to use 223 Remington ammo in a 5.56X45MM NATO chamber, but not a good idea to use 5.56X45mm ammo in a rifle specifically chambered for the 223 Remington. Although the stopping power of .22-caliber bullets remains controversial the 5.56X45mm has served well in now multiple generations of M16 rifles.
—
Craig Boddington
